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Giant axonal neuropathy. A neuropathological study.

H A Kretzschmar, B O Berg, R L Davis

    Acta Neuropathologica
    |January 1, 1987
    PubMed
    Summary
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    Giant axonal neuropathy (GAN) is a progressive neurological disorder affecting the central and peripheral nervous systems. Key features include axonal swelling and distinctive cellular inclusions, particularly Rosenthal fibers in advanced cases.

    Area of Science:

    • Neurology
    • Cell Biology
    • Genetics

    Background:

    • Giant axonal neuropathy (GAN) is a rare, inherited neurodegenerative disorder.
    • It affects both the peripheral and central nervous systems, leading to progressive disability.

    Observation:

    • Pathological hallmarks include significant axonal swellings filled with neurofilaments.
    • Accumulations of intermediate filaments are observed in various cell types, including Schwann cells, fibroblasts, and endothelial cells.
    • Rosenthal fibers, characteristic of Alexander disease, are also found in longstanding GAN cases.

    Findings:

    • GAN presents with a slowly progressive neuropathy.
    • Central nervous system involvement includes visual impairment, corticospinal tract dysfunction, ataxia, and dementia.

    Related Experiment Videos

  • The widespread cellular inclusions highlight the systemic nature of intermediate filament dysregulation in GAN.

    • Implications:

    • Understanding GAN's pathology aids in diagnosing and potentially treating this rare neuropathy.
    • Research into intermediate filament dynamics may offer insights into other neurodegenerative diseases.
    • Identifying Rosenthal fibers provides a diagnostic marker for advanced stages of GAN.